Welcome to the forums,
Love Hina is a great manga (the greatest in my opinion but opinions may differ
), the story goes as follows.
As a kid Keitaro made a promise with a girl to go to Tokyo University together since there is a legend that says if two people find each other at TU they'll be happy forever. The only problem is he can't remember who that girl was. 15 years later Keitaro failed the entrance exam for the 2nd time and starts losing hope to ever get in there. His parents threaten to kick him out of the house (as they no longer wanna support him). He decides to visit his grandma who has an Inn and ask if he can stay there.
This is the point where the manga starts: (slight spoilers for the first part of the manga, nothing serious)
Spoiler:
As Keitaro reaches Hinata Inn he discovers 2 things, first off all it's no longer an Inn but a Girls Dormatory, and apparently his grandma (who is way on a trip around the world) wants him to be the manager
. You can imagine what kinda situations this leads to, the girls living there aren't particularly happy with this off course. However he manages to get in on a trial basis.
What follows is a very chaotic, hilarious manga about Keitaro, the promise mentioned above, and the 5 girls living at Hinata Inn. The greatest thing about these manga are the completely different characters of these 5 girls. You got Naru which is a girl trying to get into TU as well and is rather violent
, there's the extremely shy 12y old Shinobu, a prankster and party animal (most of the time she's drunk or setting up some schemes for Keitaro) Kitsune, Hyperactive, turtle mecha loving Suu and last but not least Motoko (see sig) a kendo specialist.
in short love Hina is Comedy - Romance - Chaos (no other way to describe what happens at times
) - Ecchi (yes lotsa bath scenes).
Be sure to try it out, it is very good (waaaay better than the anime)